Cloth-cutting machine



April 7, l931 l Mv. F. BERG 1,799,579

CLOTH CUTTING MACHINE Filed Oct. 30, 1929' 1111/. vll/1.

Patented'y Apr. 7, y1931 Y l 1,799,579@I l MORRISnBERGf er* LesANGELES,CALIFQQRNIAQ f fcnommcnmma# MAGHINE1- lily-fill?enti.0nre/lates?t0l 2l- 0l0tl1.-e1ttng. elififnegthat .s-particularly. designedtor uf'eein Cutting 01. trimmingelOth. 0r fabreetrreef, .f

'Shane/i and Sizes, nteseetiens; Ofi un s.. fermer regularsize,fenueeaewpne elethe;

in garages,v Inachinecshopsandthe like'.

Waifsn .Certain percentagei .fabric and. 010th f 10.1` Wlielirwhenelerleeelend .eutwallie-er` S1209y metl be eeenemieally: emplyed, aswiping cloths by mechanics; jin., machine shops fgaf.

rages-andthelike andi it :is the nurpeseef. my invention t0providea..relatively"`e1mnle, Preci 19. teali, and. nexpeneve. IrlaellineA thatgmay be Celivenently lised; fer. Cuttingreelairhedl Pieeee050101919;and' fabreqinteehap-e for, use. aS,.Wpi11g.0l0tl1S, further.00..P10y1'de a; O f the, character. referred t0 with, means Wllehlpmay;be; cellyeniently, Operated.

f0.1?. Sharpenhgtheedgeetherotary; Cutter Without; neeeeeitatng. theremoval.. eff eadf.

Cuttenfromi lll-'emeehihey Furtherebieeteof.my.invention.are;tenne:-`

, viele a 010th` elittngma'ehne that bejiin era-ed'withouedanger @injuryware/.epee ator?s hands While the cloth snbeingltriim'ned" or While therotary cutter isheingsharpened;l

and further, to lprovide themachine Withan 3Q attachment l wherebybuttons vmay be very that are actelfupon bythemachinef Wththe foregoinganclf other'` objects -inf view,- my invention consists in certainnovelj features .ofi construction andiv arrangement fof term anarrew.Slet-'2.5 between saidlworkft'ablel and. itheleweredge; 0i, said-l.heusngfwhehr S10.t enables,theeleththat-ie beingeutsoni-the partsthat-'Will hereinafter be Amore fully' described and claimed i and Kiillustrated in*l the accompanying ffdrawin'gsi` isn-...Which llaisa topYplangrview of a; Vcutting mai-;

4e; chineconstrueted;m-aecerdanee ,Wtllqrnyeirl:- Vention. Eig .2 isaside,elevationalI Viemof the cut tinemeeliirle... e

Fig. Sisanfenl 4e,- appreximately-.On the-line 3&3 ef'Fig.. 225.

f Fig-' lf'sfan enlargederteal.section intakeni approximately on theline-45749051? ig,

Referring; ley-numeraleto.the@aeee1991.9any-qH ing; drawingswhichlillu-,strate al praeltical emle0gl1iment=0-mynven n ,llldesignateeasuita 7 Support te `which, ieeeell-redIa,7 lieti- :y Zentally dispesedbracket llland prejeeting forwardly-15mm thevifrelltfendiSailbiaeketieplate..l2 lravngftsfferward.pertellf;131i

C11-wed? gradually. downward@ fomna- 0011.1 5519 venelltwerksnpporterftable. Y

f PrOieeting laterally from p1 tef lf2-...teilw rear 0f the-WOrleSuppertfl3 ;ie{afh0rz9nta1ly' disposed. plate lll. and;detaehablye melmtelli thereuperi f isa housing l5.,- Withinl Wliieh is?ce l Fixed@ 011. the outer.; endl' Off S11-afm 1 7 a: pulley/9, 18.5.the sentire front'fnertien 0f. Whel is enclosed by a suitable housing orguaydn 9. f 65, and p rating-amend;- pelle/y1,l8flsean0rer"drvenfb-eltlQOf-x y 1 Detaehablyi seeured Y, te; the, ine-len ends filShaft; 17 is; a Cuttingfelisel havngyafshaltp; edgeffandfthe;peripheralzperten' Ofthisd fel Onelatesf through faiSlet.l2-.2ftl1atfsfemnedl Workf tableE159 .l

. Secured in any. suitablejmannr. to .Y the underside; et the Werkftablaand en eleeine.v that-PM10@ ,et thezellttee dise-that poieets. below thetabflelisg1ia11dhousinef23l-- Y rDetachalol-ysecured on?. top .01:14the.;` Wrorlij table and enclosingthe disc 2-li's al guardhonsg ing-24ganelf a portion thereof. immediately. above the.. worl{ tableislcutaway. soasgtol so.

machine,to5 ,heE moved ,inwardlfyinto engage-f.

f Y f 2 l.,is.a shortradially dispose'dgslottZGTandj argeflVertlealseetionltaken x projecting. iipwardlyy fr omjthe housing fini-fslot are fingers 27, the upper ends of which y to its ends, are upwardlyprojecting pins 29.V

Pivotally mounted on these pins at points intermediate their ends, areblocks 30 in which are journalled shafts 31, the same extendinlengthwise through said blocks and secure on the forward portions ofthese shafts are small Wheels or discs'32 lof abrasive material. Theperipheries of these abrasive wheels are slightly beveled. Secured tothe outer faces of the pivotally mounted blocks 30 are straps 33 havinginturned end portions andwhich latter receive and serve as bearings forthe ends of the shafts 31 that proj ect beyond the blocks 30.

Connecting the rear ends of the straps 33 is a rectractile coil spring34. 'Ihe pins 21 project above the blocks 30 and arranged on saidprojecting portions are expansive coil springs 35,'the lower ends ofwhichr bear on top of the blocks 30 and theupper ends of these springsbear against washers that are arranged beneath nuts 36 that are mountedon the,

threadedV upper ends of the pins.

In the use of my improved cutting machine the cloth or fabric to be cutis placed on table 13 andmoved rearwardly through the slot 25 untilengaged by the edge of disc 21 and which disc it will be understood isrotated at a comparatively high rate of speed by means of the belt 2Owhich passes around pulley 18. y

The sharpedge. of the disc ,very rapidly cutsy the cloth or fabric andthe operator is able to very quickly trim off the rough or uneven edgesof a section of cloth or fabric so as to produce a cloth that has amarketable value as a wiping cloth to be used by mechanics in machineshops, garages andthe like.

In the event that the piece of cloth or fabric that is being cut ortrimmed has buttons attached thereto, said Vbuttons may be very quicklyremoved by manipulating the cloth so that the portion thereofA adjacenttothe buttons or the threads that attach the but-l tons to the cloth aremoved downwardly through slot 26 between the fingers 27 with the buttonson one side of said fingers and the cloth on the other side and when thecloth or the attaching threads are engaged by the edge of the cuttingdisc 21, said buttons willV be cutn from the cloth or'fabric. ,l p

Vv'Iherear portion of guard housing 24 is cut away,"as designated 'by35, for the accommodation of the disc sharpening wheels 32 and theheight of block 28, is such that the blocks 30 carrying the shafts 31are positioned ashort distance above the horizontal plane occupied bythe axis of the disc 21. Thus the beveled edges of the sharpening wheels32 engage the edge of the cutting disc on a tangent, in a plane a shortdistance above the plane occupied by the axis of disc 2l and whicharrangement is necessary in order that the abrasive wheels will producethe desired sharpeningresults when moved into contact with the cuttingwheel and which contact results' in a driving engagement between saidcutting wheel and the abrasive wheels.

In order to sharpen the edge of the cutting disc, the operator engagesthe forward end of one of the straps 33 and moves same inwardly untilythe corresponding abrasive wheel engages the edge of the cutting wheeland during this action the retractile action of `spring 34, swings theforward end of the other one of the blocks 30 outwardly a short distanceso that there is no possibility of contact of the corresponding abrasiveWheel 32A with the cutting disc. After one side of the edge of thecutting disc has been sharpened by engagement of one of the abrasivewheels as just described, the otherv one of said abra-l trimmed toproper shape, are applicable for 1 use as wiping cloths and the like.

It will be understood that minor changes in the size, form andconstruction of the various parts of my improved cloth 'cuttingmachine'may be made and substituted for those herein shown and describedwithout departing from the spirit of my invention, the scope of which isset forth in the appended claims.

I claim as my invention:

- `1. In a cloth cutting machine, a table, a shaft journaled on saidtable, a cutting disc mounted on said shaft, a support on the table tothe rear of said cutting disc, blocks pivotally mounted on top of saidsupport, shafts journaled in said pivotally mounted blocks, abrasivewheels carried by the forward ends of said shafts, a retractile springconnected to the rear ends of said blocks for normally4 spreading theforward ends of said blocks apart and expansive springs' bearing on topof said pivotally mounted blocks.

shaft journaled on said table, al cutting disc carriedby said shaft, asupport on the table to the rear of said cutting disc, pins seated 2. Ina cloth cutting machine, a table, a

in said support and projecting upwardly therefrom, blocks journaled onsaid' pins, eX-

pansive springs arranged on'the rupper portions of said pins and bearingon top of said blocks, a shaft journaled in each block, an abrasiveWheel carried by the for-Ward end of each shaft and a retractile springConnected to the rear portions of the blocks Vfor normal- 1y spreadingthe forward portions v of the blocks apart.

In testimony whereof, I aiix my signature.

MORRIS F.- BERG;

